Champagne was an incredibly important trade region in its day, and a large source of wealth for the kings of France. One artifact of that is the unit we use to

Champagne was an incredibly important trade region in its day, and a large source of wealth for the kings of France. One artifact of that is the unit we use to measure the weight of gold: the Troy ounce comes from the city of Troyes, of which Lavau (where the tomb was discovered) is a suburb.